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UBV beta Database for Case-Hamburg Northern and Southern Luminous Stars
A database of photoelectric UBV beta photometry for stars listed in theCase-Hamburg northern and southern Milky Way luminous stars surveys hasbeen compiled from the original research literature. Consisting of over16,000 observations of some 7300 stars from over 500 sources, thisdatabase constitutes the most complete compilation of such photometryavailable for intrinsically luminous stars around the Galactic plane.Over 5000 stars listed in the Case-Hamburg surveys still lackfundamental photometric data.
| Star-forming regions near the supernova remnant IC 443
The supernova remnant (SNR) IC 443 (3C 157), along with W28, W44, S147,and HB 21, represents a growing number of examples where SNRs appear tohave collided with nearby molecular clouds or are surrounded by denseshells of neutral hydrogen. In the case of W28, far-infraredobservations have shown that a massive, O-type star and possibly apre-main-sequence B-type star are associated with the molecular cloudand its environment. In the current study, the northern component of theIC 443 molecular cloud has been detected at 20, 27, and 93 microns bythe Far Infrared Sky Survey Experiment. The bolometric luminosity ofthis far-infrared source is about 130 solar luminosities, consistentwith the expected luminosity of a B7 V star. From the far-infrared andradio observations the energetics of this region is described andcompared with other known examples of SNR/molecular cloud associations.These findings are also discussed in the context of theoretical modelswhere SNRs trigger star-forming activity in nearby molecular clouds.
| A Study of the i Geminorum Association.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1960ApJ...132..361H&db_key=AST
| A Catalogue of H II Regions.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1959ApJS....4..257S&db_key=AST
| The Association i Geminorum.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1955ApJ...121...24C&db_key=AST
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Ikizler |
| Sað Açýklýk: | 06h19m53.71s |
| Yükselim: | +23°15'54.4" |
| Görünürdeki Parlaklýk: | 9.227 |
| özdevim Sað Açýklýk: | 0.6 |
| özdevim Yükselim: | -1 |
| B-T magnitude: | 9.505 |
| V-T magnitude: | 9.25 |
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